8KCAB fuel tanks

G

gman

New member
I replaced my right fuel tank less than 3 years ago due to a leak on the old one. Now with 230 hours on the "new" tank I again have a leaking right tank. I do aggresive acro( very few snaps-all below 90 IAS) but all maneuvers within POH limits. Most maneuvers I do to the left. (Jerry,Sr. thinks this may be the cause). Any advice out there?? Is this just the price of doing Sportsman class aerobatics in an 8KCAB?
 
Agressive acro is going to shorten the lifespan of an 8KCAB's tanks.

They are pretty much welded by hand, so there is no specific way to say X of these and Y of these will make them crack.
Over the past few years we have strengthened the design and tweeked manufacturing methods considerably, but they are still not indestructable. A clam shell design like the Citabria would help on the outside, but its hard to make a center baffle that will hold up to acro; plus you will lose capacity, just like the Citabria's did.
 
Jerry I'm sending my damaged tank up to you next week for repairs. Hope you can use these new techniques to make it better.( If you remember the "Six Million Dollar Man" TV show when Steve Austin was hurt they said: "We can rebuild him, we can make him better than he was before".) I hope you can do this to my tank. Thanks Jeff Schneider
 
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